The Google Maps mobile app just got trail maps for 38 ski mountains in the U.S. and Canada. This is your awesome excuse to call in sick to work and take a ski day (or week).

It's such a pain to pull out that big, awkward paper trail map that gets increasingly wrinkled and soggy every time you take a spill or get caught in a big gust of wind. Now just load up the maps on your iPhone or Android device, and you'll see green, blue, and black runs as solid lines, and ski lifts as red dotted lines. The full list of resorts is here on the Google Blog, and it probably includes a lot of your favorite slopes. I'm virtually at Copper Mountain shredding Bouncer. [Google Play, iTunes, Google Blog]